You nailed it. This had to happen. As phones got smarter, no one knew how to optimize the UI for so many new features. Everyone knew that a certain form factor

You nailed it. This had to happen. As phones got smarter, no one knew how to optimize the UI for so many new features. Everyone knew that a certain form factor would win out eventually, but no one knew what it was. Everyone knew that whoever got it right first might dominate the market. The only logical thing was to iterate constantly, and blindly. Much the same thing happened with the personal computer market from the late 70s until the mid 90s or so.